Blockchair

Blockchair is perhaps one of the best blockchain explorer services on the market. Blockchair also likely supports the most blockchain explorers of any on this list with the following blockchains being supported:

Bitcoin

Ethereum

Ripple

Bitcoin Cash

Litecoin

Bitcoin SV

Dash

Dogecoin

Groestlcon

Telegram Open Network (TON)

Etherscan

Etherscan is a fantastic blockchain explorer specific to the Ethereum blockchain and a great alternative to Blockr.io. The UI is very clean and easy to understand. Etherscan is the best blockchain explorer for Ethereum.

BlockExplorer

Another blockchain explorer similar to Blockr.io is BlockExplorer. The interface for BlockExplorer is basic but easy to use making it a top Bitcoin wallet explorer.

BlockCypher

BlockCypher is another top alternative to Blockr.io. It is also one of the few blockchain explorers that support GRIN.

When it comes to tracking your cryptocurrency portfolio and trades you should check out CoinStats. CoinStats is one of the most highly rated cryptocurrency portfolio tracking apps in the Apple App Store and is available for iOS, Android, Web, Desktop, and Apple Watch.